South Dennis Flag

South Dennis

County Seat:
No
Area (mi²):
4.55
State:
Massachusetts

South Dennis is a CDP located in Barnstable County, Massachusetts. South Dennis has a 2025 population of 2,966 . South Dennis is currently declining at a rate of -1.49% annually but its population has increased by 2.45% since the most recent census, which recorded a population of 2,895 in 2020.

The average household income in South Dennis is $99,472 with a poverty rate of 4.52%. The median age in South Dennis is 55.2 years: 53.4 years for males, and 58.2 years for females. For every 100 females there are 97.9 males.

3K
Total Population
652
Density (mi²)
-45 -1.49%
Growth

South Dennis Population

South Dennis Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of South Dennis includes 91.47% White, 3.98% Black or African American, 3.23% other race, and smaller percentages for Two or more races, Asian and multiracial populations.

Population by Race

White (91.47%)

Black or African American (3.98%)

Other race (3.23%)

Two or more races (0.78%)

Asian (0.53%)

Race
Population
Percentage (of total)
White2,91891.47%
Black or African American1273.98%
Other race1033.23%
Two or more races250.78%
Asian170.53%

South Dennis Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

South Dennis' average per capita income is $53,338. Household income levels show a median of $86,500. The poverty rate stands at 4.52%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$118,551-
Families$113,674$121,907
Households$86,500$99,472
Non Families$53,586$64,228

$53,338

Average Income

$86,500

Median Household Income

4.52%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)